Question

The wheel of a bullock cart has a diameter of 1.4 m. How many rotations will the wheel complete

as the cart travels 1.1 km?
​

Answer 1

Given,

Diameter (d) = 1.4 m

Radius (r) = d/2

= 1.4/2 m

= 0.7 m

pi = 3.14

Circumference = 2*pi*r

= (2*3.14*0.7) m

= 4.396 m

This means that each rotation of wheel will cover 4.396 m,

So,

Total Distance = 1.1 km

= 1100 m

No. of rotations = 1100/4.396

= 250.22 rotations

I hope this helps.